[sgdread]

I've got pretty complicated exercises in whiteboarding sessions: some problems with graphs or dynamic programming. The way how I solve those in my daily work is totally different to the way I go in 45 min whiteboard interviews: in 45 min you always have to do it in top-down manner, otherwise you will fail by writing non-relevant parts of the code and running out of time. I usually prefer opposite: bottom-up approach. It's a skill. Very artificial and very dumb to my opinion since you never work this way, but interview supposed to test how you do you work.